METER / GAUGE SYSTEM Fuel Receiver Gauge Display Malfunction

DESCRIPTION

OPERATION

The combination meter assembly uses the fuel injection volume signal from the ECM and fuel sender gauge assembly to detect the amount of fuel remaining in the fuel tank assembly. Each gauge assembly has a variable resistor whose resistance changes according to the amount of fuel remaining. The gauge assemblies receive voltage from the combination meter assembly and change the voltage based on the resistance that changes according to the amount of fuel remaining in the fuel tank assembly. The combination meter assembly receives a fuel injection volume signal from the ECM and detects the voltage between each variable resistor and each resistor in the combination meter assembly, and operates the fuel receiver gauge.
FUEL RECEIVER GAUGE READING
1. During normal driving:
  
  As the fuel level in the fuel tank assembly changes when driving on a hill or applying brakes, the fuel receiver gauge reading is updated according to the fuel injection volume during normal driving. However, as the fuel injection volume measurement has a margin of error, the value is indicated after correction by input values from the fuel sender gauge assembly.
2. During refueling:
  
  The fuel level in the fuel tank assembly rises rapidly when fuel is added. If the averaging process that is used during normal driving is used in this case, the fuel receiver gauge reading cannot be updated promptly. Therefore, when it is judged that fuel is being added to the vehicle based on the shift lever position and changes in the fuel level, output values from the fuel sender gauge assembly are immediately reflected in the fuel receiver gauge reading. This control is called refueling judgment.
REFUELING JUDGMENT CONDITIONS

Note

Add fuel with the engine switch off to ensure safety and to enable refueling judgment so that an appropriate fuel receiver gauge reading is obtained. If it is necessary to add fuel with the engine switch on (IG), move the shift lever to P or N.
1. Normal judgment condition (When normal refueling method is used)
  
  With the engine switch off, the fuel sender gauge assembly detect a change of 5.0 liters (5.3 US qts, 4.4 Imp. qts) or more in the fuel level.
2. Other judgment conditions (When other refueling method is used)
  
  Any of the following conditions is met:
  - With the vehicle and engine stopped and the engine switch on (IG), the fuel sender gauge assembly detect a change of 5.0 liters (5.3 US qts, 4.4 Imp. qts) or more in the fuel level.
  - With the vehicle stopped, the engine running, the engine switch on (IG) and the shift lever in P or N, the fuel sender gauge assembly detect a change of 5.0 liters (5.3 US qts, 4.4 Imp. qts) or more in the fuel level.
  - With the vehicle stopped, the engine running, the engine switch on (IG) and the shift lever in any driving position, the fuel sender gauge assembly detect a change of 15.0 liters (15.9 US qts, 13.2 Imp. qts) or more in the fuel level.
PRECAUTION FOR REFUELING

The fuel sender gauge assembly cannot detect changes in the fuel level within certain ranges (around points E and F). Therefore, even if 5.0 liters (5.3 US qts, 4.4 Imp. qts) or more of fuel is added, refueling judgment may not be performed and the fuel receiver gauge reading may not change when fuel level is within such ranges.
FORCED RESET OF FUEL RECEIVER GAUGE

When driving at 20 km/h (12 mph) or more, if the output values from the fuel sender gauge assembly are different from the fuel receiver gauge reading by 15.0 liters (15.9 US qts, 13.2 Imp. qts) or more for approximately 2 minutes, output values from both gauge assemblies are immediately reflected in the fuel receiver gauge reading to compensate for a situation when refueling judgment cannot be made.

WIRING DIAGRAM


*a	Fuel Sender Gauge Assembly
*b	Combination Meter Assembly

CAUTION / NOTICE / HINT

CAUTION:

Be careful of flames.

Note

When replacing the combination meter assembly, make sure to replace it with a new one.

PROCEDURE

CHECK SYMPTOMS

Ask the customer about the problem symptoms.

Result

Result	Proceed to
Malfunction occurs when adding fuel (Even after adding fuel, reading does not increase at all or increases very slowly, etc.)	A
Malfunction occurs during normal driving (The reading does not change, decreases quickly or decreases when the vehicle is not being driven, etc.) (The problem symptom recurs)	B
Malfunction occurs during normal driving (The reading does not change, decreases quickly or decreases when the vehicle is not being driven, etc.) (The problem symptom does not recur)	C

PERFORM ACTIVE TEST USING GTS (FUEL METER OPERATION) Click here

CHECK FOR DTC (SFI SYSTEM) Click here

PERFORM ACTIVE TEST USING GTS (FUEL METER OPERATION)

Using the GTS, perform the Active Test.

Click here

Body Electrical > Combination Meter > Active Test

Tester Display	Measurement Item	Control Range	Diagnostic Note
Fuel Meter Operation	Fuel receiver gauge	OFF, Sender E, Empty, Warning, 1/4, 1/2, 3/4, Full or Sender F	-

Body Electrical > Combination Meter > Active Test

Tester Display
Fuel Meter Operation

OK
Fuel receiver gauge indication is normal.

Result

Proceed to
OK
NG

REPLACE COMBINATION METER ASSEMBLY Click here

CHECK FOR DTC (SFI SYSTEM)

Check for DTCs.

for 8AR-FTS (w/ GPF): Click here

for 8AR-FTS (w/ Canister Pump Module): Click here

for 8AR-FTS (w/o Canister Pump Module): Click here

for 3ZR-FAE: Click here

for 3ZR-FAE (w/ Canister Pump Module): Click here

Powertrain > Engine > Trouble Codes
Powertrain > Engine and ECT > Trouble Codes

OK
No DTCs are output.

Result

Result	Proceed to
OK	A
NG (for 8AR-FTS [w/ GPF])	B
NG (for 8AR-FTS [w/ Canister Pump Module])	C
NG (for 8AR-FTS [w/o Canister Pump Module])	D
NG (for 3ZR-FAE)	E
NG (for 3ZR-FAE [w/ Canister Pump Module])	F

GO TO SFI SYSTEM Click here

CHECK FOR DTC (VEHICLE STABILITY CONTROL SYSTEM)

Check for DTCs.

Click here

Chassis > ABS/VSC/TRC > Trouble Codes

OK
No DTCs are output.

Result

Proceed to
OK
NG

GO TO VEHICLE STABILITY CONTROL SYSTEM Click here

CHECK FUEL RECEIVER GAUGE OPERATION BY ADDING FUEL

Record the fuel receiver gauge reading.
If the fuel tank assembly is almost full, drain 20 liters or more of fuel. (This is not necessary when the fuel tank assembly is sufficiently below full.)
Disconnect the cable from the negative (-) battery terminal to reset the fuel receiver gauge.

Tech Tips

Check that the engine switch is turned off before disconnecting the cable from the negative (-) battery terminal.
Connect the cable to the negative (-) battery terminal and turn the engine switch on (IG).
Check that the fuel receiver gauge has been reset.
Drive the vehicle at 1.75 km/h (1.09 mph) or more, then move the shift lever to P and turn the engine switch off.

Add 5.0 liters or more of fuel, turn the engine switch on (IG), and check that the fuel receiver gauge reading increases in proportion to the amount of fuel added.

Result

Result	Proceed to
Fuel receiver gauge reading increases in proportion to the amount of fuel added	A
Fuel receiver gauge reading does not change even when fuel is added	B

GO TO STEP 7 Click here

INSPECT FUEL TANK ASSEMBLY

Tech Tips

Inspect the fuel tank assembly for deformation, foreign matter or an improperly installed fuel receiver gauge, as this may be the cause of a fuel receiver gauge malfunction.

Visually check the fuel tank assembly for any abnormalities.
Check if there is an excessive amount of foreign matter in the fuel tank assembly.

Check the installation condition of the fuel tank assembly, fuel sender gauge assembly.

Result

Result	Proceed to
Normal	A
Appearance of the fuel tank assembly is abnormal. (for 8AR-FTS [w/ Canister Pump Module])	B
Appearance of the fuel tank assembly is abnormal. (for 8AR-FTS [w/o Canister Pump Module])	C
Appearance of the fuel tank assembly is abnormal. (for 3ZR-FAE)	D
Appearance of the fuel tank assembly is abnormal. (for 3ZR-FAE [w/ Canister Pump Module])	E
There is an excessive amount of foreign matter in the fuel tank assembly.	F
The fuel tank assembly or fuel sender gauge assembly is not installed correctly.	G

REPLACE FUEL TANK ASSEMBLY Click here

CLEAN INSIDE OF FUEL TANK ASSEMBLY

INSTALL FUEL TANK ASSEMBLY OR FUEL SENDER GAUGE ASSEMBLY CORRECTLY

READ VALUE USING GTS (FUEL INPUT)

Using the GTS, read the Data List.

Click here

Body Electrical > Combination Meter > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Fuel Input	Fuel input	Min.: 0, Max.: 127.5	Current fuel level displayed	Unit: Liter

Body Electrical > Combination Meter > Data List

Tester Display
Fuel Input

OK
Fuel level data displayed on the GTS is almost the same as the fuel receiver gauge indication.

Result

Proceed to
OK
NG

REPLACE COMBINATION METER ASSEMBLY Click here

INSPECT FUEL SENDER GAUGE ASSEMBLY

Remove the fuel sender gauge assembly.

for 8AR-FTS: Click here

for 3ZR-FAE: Click here

for 3ZR-FAE (w/ Canister Pump Module): Click here

Inspect the fuel sender gauge assembly.

for 8AR-FTS: Click here

for 3ZR-FAE: Click here

for 3ZR-FAE (w/ Canister Pump Module): Click here

Result

Result	Proceed to
OK	A
NG (for 8AR-FTS)	B
NG (for 3ZR-FAE)	C
NG(for 3ZR-FAE [w/ Canister Pump Module])	D

REPLACE FUEL SENDER GAUGE ASSEMBLY Click here

CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - FUEL SENDER GAUGE ASSEMBLY AND BODY GROUND)

Disconnect the I10 combination meter assembly connector.
Disconnect the b2 fuel sender gauge assembly connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance

Tester Connection	Condition	Specified Condition
I10-27 (FR) - b2-1 (FS)	Always	Below 1 Ω
I10-28 (FE) - b2-2 (FE)	Always	Below 1 Ω
I10-31 (ES) - Body ground	Always	Below 1 Ω
I10-27 (FR) or b2-1 (FS) - Body ground	Always	10 kΩ or higher
I10-28 (FE) or b2-2 (FE) - Body ground	Always	10 kΩ or higher

Result

Proceed to
OK
NG

REPLACE COMBINATION METER ASSEMBLY Click here

REPAIR OR REPLACE HARNESS OR CONNECTOR

PERFORM ACTIVE TEST USING GTS (FUEL METER OPERATION)

Using the GTS, perform the Active Test.

Click here

Body Electrical > Combination Meter > Active Test

Tester Display	Measurement Item	Control Range	Diagnostic Note
Fuel Meter Operation	Fuel receiver gauge	OFF, Sender E, Empty, Warning, 1/4, 1/2, 3/4, Full or Sender F	-

Body Electrical > Combination Meter > Active Test

Tester Display
Fuel Meter Operation

OK
Fuel receiver gauge indication is normal.

Result

Proceed to
OK
NG

REPLACE COMBINATION METER ASSEMBLY Click here

CHECK FOR DTC (SFI SYSTEM)

Check for DTCs.

for 8AR-FTS (w/ GPF): Click here

for 8AR-FTS (w/ Canister Pump Module): Click here

for 8AR-FTS (w/o Canister Pump Module): Click here

for 3ZR-FAE: Click here

for 3ZR-FAE (w/ Canister Pump Module): Click here

Powertrain > Engine > Trouble Codes
Powertrain > Engine and ECT > Trouble Codes

OK
No DTCs are output.

Result

Result	Proceed to
OK	A
NG (for 8AR-FTS [w/ GPF])	B
NG (for 8AR-FTS [w/ Canister Pump Module])	C
NG (for 8AR-FTS [w/o Canister Pump Module])	D
NG (for 3ZR-FAE)	E
NG (for 3ZR-FAE [w/ Canister Pump Module])	F

GO TO SFI SYSTEM Click here

CHECK FOR DTC (VEHICLE STABILITY CONTROL SYSTEM)

Check for DTCs.

Click here

Chassis > ABS/VSC/TRC > Trouble Codes

OK
No DTCs are output.

Result

Proceed to
OK
NG

GO TO VEHICLE STABILITY CONTROL SYSTEM Click here

CHECK FOR DTC

Recheck for DTCs and check that no DTCs are output.

Click here

Body Electrical > Combination Meter > Trouble Codes

OK
No DTCs are output.

Result

Proceed to
OK
NG

GO TO DTC B1500 Click here

INSPECT FUEL RECEIVER GAUGE

Disconnect the cable from the negative (-) battery terminal to reset the fuel receiver gauge.

Tech Tips

Check that the engine switch is turned off before disconnecting the cable from the negative (-) battery terminal.
Connect the cable to the negative (-) battery terminal and turn the engine switch on (IG).

Check if the fuel receiver gauge reading corresponds with the amount of fuel remaining in the fuel tank assembly.

Result

Result	Proceed to
Fuel receiver gauge reading corresponds with the amount of fuel remaining in the fuel tank assembly.	A
Fuel receiver gauge reading does not correspond with the amount of fuel remaining in the fuel tank assembly.	B

END

GO TO STEP 7 Click here

CHECK FOR DTC (SFI SYSTEM)

Check for DTCs.

for 8AR-FTS (w/ GPF): Click here

for 8AR-FTS (w/ Canister Pump Module): Click here

for 8AR-FTS (w/o Canister Pump Module): Click here

for 3ZR-FAE: Click here

for 3ZR-FAE (w/ Canister Pump Module): Click here

Powertrain > Engine > Trouble Codes
Powertrain > Engine and ECT > Trouble Codes

OK
No DTCs are output.

Result

Result	Proceed to
OK	A
NG (for 8AR-FTS [w/ GPF])	B
NG (for 8AR-FTS [w/ Canister Pump Module])	C
NG (for 8AR-FTS [w/o Canister Pump Module])	D
NG (for 3ZR-FAE)	E
NG (for 3ZR-FAE [w/ Canister Pump Module])	F

GO TO SFI SYSTEM Click here

CHECK FOR DTC (VEHICLE STABILITY CONTROL SYSTEM)

Check for DTCs.

Click here

Chassis > ABS/VSC/TRC > Trouble Codes

OK
No DTCs are output.

Result

Proceed to
OK
NG

GO TO VEHICLE STABILITY CONTROL SYSTEM Click here

INSPECT FUEL TANK ASSEMBLY

Tech Tips

Inspect the fuel tank assembly for deformation, foreign matter or an improperly installed fuel receiver gauge, as this may be the cause of a fuel receiver gauge malfunction.

Visually check the fuel tank assembly for any abnormalities.
Check if there is an excessive amount of foreign matter in the fuel tank assembly.

Check the installation condition of the fuel tank assembly, fuel sender gauge assembly.

Result

Result	Proceed to
Normal	A
Appearance of the fuel tank assembly is abnormal. (for 8AR-FTS [w/ Canister Pump Module])	B
Appearance of the fuel tank assembly is abnormal. (for 8AR-FTS [w/o Canister Pump Module])	C
Appearance of the fuel tank assembly is abnormal. (for 3ZR-FAE)	D
Appearance of the fuel tank assembly is abnormal. (for 3ZR-FAE [w/ Canister Pump Module])	E
There is an excessive amount of foreign matter in the fuel tank assembly.	F
The fuel tank assembly or fuel sender gauge assembly is not installed correctly.	G

REPLACE COMBINATION METER ASSEMBLY Click here

REPLACE FUEL TANK ASSEMBLY Click here

CLEAN INSIDE OF FUEL TANK ASSEMBLY

INSTALL FUEL TANK ASSEMBLY OR FUEL SENDER GAUGE ASSEMBLY CORRECTLY